Our Board of Directors

Drew Cason Chair/Director

After identifying a significant gap in client choice and control, Drew co-founded Holistic Horizons in 2016 with a mission to provide better, more personalised support. Now, eight years later, he has grown the company alongside a dedicated team into a trusted and well-known service provider in the sector.

Qualified in Counselling and Community Services, Drew brings extensive experience from his years in the disability industry. 

Gary Cadwallender Managing Director

With over 20 years in healthcare, Gary's career spans ICU and theatre nursing in the Royal Air Force, as well as roles in ED, oncology, disability, and aged care. His commitment to compassionate, respectful care has been a constant throughout.

Gary holds an MBA (HR), a Bachelor of Science in Nursing, a Bachelor of Science (Hons) in Contemporary Health Practice, a Diploma and Post Graduate Certificate in Management, and is a Justice of the Peace (NSW) and member of the Australian Institute of Company Directors.



Kylie Cason Director
Kylie co-founded Holistic Horizons in 2016 alongside Drew, driven by a deep passion for enhancing the lives of individuals with disabilities.

With a strong health-focused background and a flair for design, Kylie brings a unique perspective, ensuring that our Supported Independent Living (SIL) and respite homes offer a warm, homely feel that promotes comfort and well-being for our clients.
Celeste Cason Clinical Non-Executive Director

Celeste Cason is a compassionate and dedicated  Registered Nurse with 18 years of experience, specialising in high-quality patient care across diverse healthcare settings. Her expertise includes acute medical and cardiac care, aged care, dementia, and mental health. Celeste's approach is rooted in empathy, effective communication, and a strong commitment to patient-centered care.

Michelle Sloane Clinical Non-Executive Director
Michelle Sloane is the CEO and Director of SummitCare, overseeing 10 facilities and 2,000 clients.
With over 25 years in senior director roles, Michelle has also served on boards for Southern Highlands Hospice, Macquarie Health Corporation, and Women on Boards. She holds an MBA, is a Graduate of the ACID, and has over 35 years of experience as a Registered Nurse.

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